./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:55:57,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:55:57,702 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:55:57,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:55:57,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:55:57,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:55:57,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:55:57,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:55:57,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:55:57,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:55:57,733 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:55:57,733 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:55:57,733 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:55:57,734 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:55:57,734 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:55:57,735 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:55:57,735 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:55:57,736 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:55:57,736 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:55:57,737 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:55:57,737 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:55:57,738 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:55:57,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:55:57,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:55:57,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:55:57,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:55:57,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:55:57,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:55:57,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:55:57,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:55:57,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:55:57,743 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:55:57,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:55:57,743 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:55:57,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:55:57,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:55:57,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:55:57,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:55:57,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:55:57,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:55:57,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:55:57,746 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:55:57,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:55:57,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:55:57,747 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:55:57,747 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:55:57,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:55:57,748 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203 [2023-12-02 17:55:57,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:55:57,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:55:57,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:55:57,981 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:55:57,982 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:55:57,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c [2023-12-02 17:56:00,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:56:00,993 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:56:00,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c [2023-12-02 17:56:01,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/data/64739079d/563fb04643b442d2bbba75012b20f303/FLAG710690004 [2023-12-02 17:56:01,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/data/64739079d/563fb04643b442d2bbba75012b20f303 [2023-12-02 17:56:01,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:56:01,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:56:01,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:56:01,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:56:01,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:56:01,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:01,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66607c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01, skipping insertion in model container [2023-12-02 17:56:01,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:01,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:56:01,848 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c[65706,65719] [2023-12-02 17:56:01,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:56:01,866 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:56:01,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 17:56:01,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375] [2023-12-02 17:56:01,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [787] [2023-12-02 17:56:01,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1858] [2023-12-02 17:56:01,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1893] [2023-12-02 17:56:01,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2031] [2023-12-02 17:56:01,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2397] [2023-12-02 17:56:01,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2616] [2023-12-02 17:56:01,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3009] [2023-12-02 17:56:01,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3026] [2023-12-02 17:56:01,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3085] [2023-12-02 17:56:01,955 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c[65706,65719] [2023-12-02 17:56:01,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:56:01,983 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:56:01,989 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:56:01,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01 WrapperNode [2023-12-02 17:56:01,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:56:01,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:56:01,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:56:01,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:56:01,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,079 INFO L138 Inliner]: procedures = 135, calls = 237, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1128 [2023-12-02 17:56:02,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:56:02,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:56:02,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:56:02,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:56:02,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:56:02,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:56:02,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:56:02,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:56:02,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (1/1) ... [2023-12-02 17:56:02,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:56:02,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:56:02,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:56:02,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:56:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 17:56:02,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 17:56:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 17:56:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 17:56:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 17:56:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 17:56:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 17:56:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 17:56:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 17:56:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 17:56:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 17:56:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 17:56:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 17:56:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 17:56:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 17:56:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 17:56:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 17:56:02,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 17:56:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 17:56:02,233 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 17:56:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 17:56:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 17:56:02,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 17:56:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 17:56:02,233 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 17:56:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 17:56:02,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 17:56:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:56:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 17:56:02,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 17:56:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 17:56:02,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 17:56:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 17:56:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 17:56:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-02 17:56:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-02 17:56:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 17:56:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 17:56:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 17:56:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 17:56:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 17:56:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 17:56:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 17:56:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 17:56:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 17:56:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 17:56:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 17:56:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 17:56:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 17:56:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 17:56:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:56:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 17:56:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 17:56:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:56:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:56:02,448 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:56:02,450 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:56:03,197 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:56:03,596 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:56:03,597 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:56:03,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:56:03 BoogieIcfgContainer [2023-12-02 17:56:03,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:56:03,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:56:03,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:56:03,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:56:03,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:56:01" (1/3) ... [2023-12-02 17:56:03,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2c33ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:56:03, skipping insertion in model container [2023-12-02 17:56:03,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:01" (2/3) ... [2023-12-02 17:56:03,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2c33ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:56:03, skipping insertion in model container [2023-12-02 17:56:03,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:56:03" (3/3) ... [2023-12-02 17:56:03,605 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product33.cil.c [2023-12-02 17:56:03,621 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:56:03,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:56:03,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:56:03,675 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ebf0e43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:56:03,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:56:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 127 states have (on average 1.3070866141732282) internal successors, (166), 133 states have internal predecessors, (166), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-02 17:56:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 17:56:03,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:03,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:56:03,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:56:03,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:03,699 INFO L85 PathProgramCache]: Analyzing trace with hash 673351741, now seen corresponding path program 1 times [2023-12-02 17:56:03,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:56:03,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594427598] [2023-12-02 17:56:03,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:03,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:56:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:56:04,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:56:04,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594427598] [2023-12-02 17:56:04,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594427598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:56:04,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:56:04,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:56:04,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361170770] [2023-12-02 17:56:04,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:56:04,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:56:04,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:56:04,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:56:04,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:56:04,116 INFO L87 Difference]: Start difference. First operand has 222 states, 127 states have (on average 1.3070866141732282) internal successors, (166), 133 states have internal predecessors, (166), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 17:56:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:56:04,259 INFO L93 Difference]: Finished difference Result 360 states and 482 transitions. [2023-12-02 17:56:04,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:56:04,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 83 [2023-12-02 17:56:04,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:56:04,275 INFO L225 Difference]: With dead ends: 360 [2023-12-02 17:56:04,275 INFO L226 Difference]: Without dead ends: 218 [2023-12-02 17:56:04,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:56:04,284 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:56:04,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 256 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:56:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-02 17:56:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2023-12-02 17:56:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 125 states have (on average 1.28) internal successors, (160), 129 states have internal predecessors, (160), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 17:56:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 293 transitions. [2023-12-02 17:56:04,346 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 293 transitions. Word has length 83 [2023-12-02 17:56:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:56:04,348 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 293 transitions. [2023-12-02 17:56:04,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 17:56:04,348 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 293 transitions. [2023-12-02 17:56:04,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 17:56:04,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:04,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:56:04,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:56:04,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:56:04,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash -492748979, now seen corresponding path program 1 times [2023-12-02 17:56:04,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:56:04,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487909801] [2023-12-02 17:56:04,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:04,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:56:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:56:04,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:56:04,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487909801] [2023-12-02 17:56:04,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487909801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:56:04,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:56:04,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:56:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106332181] [2023-12-02 17:56:04,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:56:04,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:56:04,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:56:04,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:56:04,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:56:04,597 INFO L87 Difference]: Start difference. First operand 218 states and 293 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 17:56:04,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:56:04,719 INFO L93 Difference]: Finished difference Result 355 states and 466 transitions. [2023-12-02 17:56:04,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:56:04,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 84 [2023-12-02 17:56:04,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:56:04,723 INFO L225 Difference]: With dead ends: 355 [2023-12-02 17:56:04,723 INFO L226 Difference]: Without dead ends: 220 [2023-12-02 17:56:04,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:56:04,726 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:56:04,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:56:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-02 17:56:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-12-02 17:56:04,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 127 states have (on average 1.2755905511811023) internal successors, (162), 131 states have internal predecessors, (162), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 17:56:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 295 transitions. [2023-12-02 17:56:04,752 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 295 transitions. Word has length 84 [2023-12-02 17:56:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:56:04,752 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 295 transitions. [2023-12-02 17:56:04,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 17:56:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 295 transitions. [2023-12-02 17:56:04,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 17:56:04,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:04,756 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:56:04,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:56:04,757 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:56:04,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:04,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1929745747, now seen corresponding path program 1 times [2023-12-02 17:56:04,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:56:04,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130099144] [2023-12-02 17:56:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:04,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:56:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:56:04,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:56:04,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130099144] [2023-12-02 17:56:04,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130099144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:56:04,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:56:04,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:56:04,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830397399] [2023-12-02 17:56:04,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:56:04,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:56:04,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:56:04,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:56:04,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:56:04,893 INFO L87 Difference]: Start difference. First operand 220 states and 295 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 17:56:05,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:56:05,009 INFO L93 Difference]: Finished difference Result 470 states and 649 transitions. [2023-12-02 17:56:05,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:56:05,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2023-12-02 17:56:05,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:56:05,013 INFO L225 Difference]: With dead ends: 470 [2023-12-02 17:56:05,013 INFO L226 Difference]: Without dead ends: 268 [2023-12-02 17:56:05,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:56:05,015 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 57 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:56:05,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 511 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:56:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-12-02 17:56:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 263. [2023-12-02 17:56:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 163 states have internal predecessors, (215), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:56:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 370 transitions. [2023-12-02 17:56:05,041 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 370 transitions. Word has length 89 [2023-12-02 17:56:05,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:56:05,042 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 370 transitions. [2023-12-02 17:56:05,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 17:56:05,042 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 370 transitions. [2023-12-02 17:56:05,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 17:56:05,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:05,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:56:05,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:56:05,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:56:05,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:05,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1818781716, now seen corresponding path program 1 times [2023-12-02 17:56:05,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:56:05,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845862028] [2023-12-02 17:56:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:05,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:56:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:56:05,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:56:05,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845862028] [2023-12-02 17:56:05,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845862028] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:56:05,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601540964] [2023-12-02 17:56:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:05,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:56:05,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:56:05,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:56:05,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:56:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:05,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:56:05,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:56:05,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:56:05,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601540964] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:05,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [583645118] [2023-12-02 17:56:05,792 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2023-12-02 17:56:05,792 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:56:05,796 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:56:05,801 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:56:05,802 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:56:56,465 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 17:56:56,658 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 17:56:56,852 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:57:58,299 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 518 DAG size of output: 518 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:58:08,626 WARN L293 SmtUtils]: Spent 10.00s on a formula simplification. DAG size of input: 519 DAG size of output: 518 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:58:19,725 WARN L293 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 525 DAG size of output: 524 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:58:31,408 WARN L293 SmtUtils]: Spent 11.24s on a formula simplification. DAG size of input: 523 DAG size of output: 522 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:58:35,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [583645118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:58:35,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:58:35,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 17:58:35,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40334009] [2023-12-02 17:58:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:58:35,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 17:58:35,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:58:35,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 17:58:35,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:58:35,426 INFO L87 Difference]: Start difference. First operand 263 states and 370 transitions. Second operand has 24 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-12-02 17:58:46,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:58:46,132 INFO L93 Difference]: Finished difference Result 571 states and 836 transitions. [2023-12-02 17:58:46,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 17:58:46,133 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 90 [2023-12-02 17:58:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:58:46,137 INFO L225 Difference]: With dead ends: 571 [2023-12-02 17:58:46,137 INFO L226 Difference]: Without dead ends: 326 [2023-12-02 17:58:46,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 98.6s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:58:46,139 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 111 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 3887 SdHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:58:46,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 3887 Invalid, 2198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-02 17:58:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-12-02 17:58:46,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 286. [2023-12-02 17:58:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 181 states have (on average 1.3701657458563536) internal successors, (248), 185 states have internal predecessors, (248), 79 states have call successors, (79), 26 states have call predecessors, (79), 25 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:58:46,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 403 transitions. [2023-12-02 17:58:46,220 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 403 transitions. Word has length 90 [2023-12-02 17:58:46,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:58:46,220 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 403 transitions. [2023-12-02 17:58:46,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-12-02 17:58:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 403 transitions. [2023-12-02 17:58:46,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 17:58:46,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:58:46,224 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:58:46,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:58:46,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:58:46,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:58:46,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:58:46,432 INFO L85 PathProgramCache]: Analyzing trace with hash 750564360, now seen corresponding path program 1 times [2023-12-02 17:58:46,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:58:46,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194899838] [2023-12-02 17:58:46,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:46,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:58:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:58:46,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:58:46,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194899838] [2023-12-02 17:58:46,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194899838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:58:46,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:58:46,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:58:46,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731204836] [2023-12-02 17:58:46,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:58:46,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:58:46,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:58:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:58:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:58:46,538 INFO L87 Difference]: Start difference. First operand 286 states and 403 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 17:58:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:58:46,777 INFO L93 Difference]: Finished difference Result 665 states and 970 transitions. [2023-12-02 17:58:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:58:46,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2023-12-02 17:58:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:58:46,781 INFO L225 Difference]: With dead ends: 665 [2023-12-02 17:58:46,781 INFO L226 Difference]: Without dead ends: 403 [2023-12-02 17:58:46,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:58:46,783 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 55 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:58:46,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 514 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:58:46,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-12-02 17:58:46,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 398. [2023-12-02 17:58:46,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 268 states have (on average 1.4328358208955223) internal successors, (384), 272 states have internal predecessors, (384), 104 states have call successors, (104), 26 states have call predecessors, (104), 25 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-12-02 17:58:46,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 589 transitions. [2023-12-02 17:58:46,894 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 589 transitions. Word has length 95 [2023-12-02 17:58:46,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:58:46,895 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 589 transitions. [2023-12-02 17:58:46,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 17:58:46,895 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 589 transitions. [2023-12-02 17:58:46,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 17:58:46,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:58:46,898 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:58:46,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:58:46,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:58:46,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:58:46,899 INFO L85 PathProgramCache]: Analyzing trace with hash 370980874, now seen corresponding path program 1 times [2023-12-02 17:58:46,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:58:46,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127423952] [2023-12-02 17:58:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:46,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:58:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:58:47,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:58:47,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127423952] [2023-12-02 17:58:47,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127423952] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:58:47,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032287068] [2023-12-02 17:58:47,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:47,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:58:47,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:58:47,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:58:47,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:58:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:47,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:58:47,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:58:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:58:47,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:58:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:58:47,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032287068] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:58:47,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [362250183] [2023-12-02 17:58:47,484 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2023-12-02 17:58:47,484 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:58:47,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:58:47,485 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:58:47,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:59:59,928 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:00:00,090 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 498 for LOIs [2023-12-02 18:00:02,306 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:00:24,771 WARN L293 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 498 DAG size of output: 499 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:00:34,865 WARN L293 SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 528 DAG size of output: 523 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:15,746 WARN L293 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 521 DAG size of output: 521 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:25,802 WARN L293 SmtUtils]: Spent 9.75s on a formula simplification. DAG size of input: 522 DAG size of output: 521 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:36,527 WARN L293 SmtUtils]: Spent 10.35s on a formula simplification. DAG size of input: 528 DAG size of output: 527 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:47,344 WARN L293 SmtUtils]: Spent 10.42s on a formula simplification. DAG size of input: 526 DAG size of output: 525 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:02:10,168 WARN L293 SmtUtils]: Spent 22.32s on a formula simplification. DAG size of input: 536 DAG size of output: 525 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:02:33,315 WARN L293 SmtUtils]: Spent 22.60s on a formula simplification. DAG size of input: 534 DAG size of output: 523 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:02:45,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [362250183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:02:45,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:02:45,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 18:02:45,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525605590] [2023-12-02 18:02:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:02:45,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 18:02:45,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:02:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 18:02:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 18:02:45,258 INFO L87 Difference]: Start difference. First operand 398 states and 589 transitions. Second operand has 28 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2023-12-02 18:03:00,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:03:00,561 INFO L93 Difference]: Finished difference Result 812 states and 1231 transitions. [2023-12-02 18:03:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 18:03:00,561 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 96 [2023-12-02 18:03:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:03:00,564 INFO L225 Difference]: With dead ends: 812 [2023-12-02 18:03:00,564 INFO L226 Difference]: Without dead ends: 477 [2023-12-02 18:03:00,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 162.9s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 18:03:00,566 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 217 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3994 SdHoareTripleChecker+Invalid, 2684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:03:00,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 3994 Invalid, 2684 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2023-12-02 18:03:00,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-12-02 18:03:00,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 412. [2023-12-02 18:03:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 280 states have (on average 1.4321428571428572) internal successors, (401), 284 states have internal predecessors, (401), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-02 18:03:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 608 transitions. [2023-12-02 18:03:00,692 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 608 transitions. Word has length 96 [2023-12-02 18:03:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:03:00,693 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 608 transitions. [2023-12-02 18:03:00,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2023-12-02 18:03:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 608 transitions. [2023-12-02 18:03:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 18:03:00,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:03:00,697 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:03:00,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 18:03:00,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:03:00,899 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:03:00,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:03:00,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1161348165, now seen corresponding path program 1 times [2023-12-02 18:03:00,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:03:00,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984593939] [2023-12-02 18:03:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:03:00,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:03:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:03:01,057 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:03:01,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:03:01,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984593939] [2023-12-02 18:03:01,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984593939] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:03:01,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312171804] [2023-12-02 18:03:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:03:01,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:03:01,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:03:01,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:03:01,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 18:03:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:03:01,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:03:01,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:03:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:03:01,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:03:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:03:01,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312171804] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:03:01,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2117434044] [2023-12-02 18:03:01,465 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2023-12-02 18:03:01,465 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:03:01,466 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:03:01,466 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:03:01,466 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:04:31,109 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:04:31,272 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 557 for LOIs [2023-12-02 18:04:33,135 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2023-12-02 18:04:33,381 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 489 for LOIs [2023-12-02 18:04:34,217 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 18:04:34,388 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:05:37,191 WARN L293 SmtUtils]: Spent 12.51s on a formula simplification. DAG size of input: 594 DAG size of output: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:05:49,977 WARN L293 SmtUtils]: Spent 12.32s on a formula simplification. DAG size of input: 595 DAG size of output: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:06:29,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2117434044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:06:29,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:06:29,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 18:06:29,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300971681] [2023-12-02 18:06:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:06:29,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 18:06:29,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:06:29,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 18:06:29,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1221, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 18:06:29,293 INFO L87 Difference]: Start difference. First operand 412 states and 608 transitions. Second operand has 32 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 18:06:53,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:06:53,594 INFO L93 Difference]: Finished difference Result 841 states and 1272 transitions. [2023-12-02 18:06:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 18:06:53,595 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 99 [2023-12-02 18:06:53,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:06:53,599 INFO L225 Difference]: With dead ends: 841 [2023-12-02 18:06:53,599 INFO L226 Difference]: Without dead ends: 506 [2023-12-02 18:06:53,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 114.9s TimeCoverageRelationStatistics Valid=111, Invalid=1221, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 18:06:53,602 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 60 mSDsluCounter, 4401 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 3970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2023-12-02 18:06:53,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4643 Invalid, 3970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3959 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2023-12-02 18:06:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-12-02 18:06:53,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 448. [2023-12-02 18:06:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 310 states have (on average 1.429032258064516) internal successors, (443), 314 states have internal predecessors, (443), 108 states have call successors, (108), 30 states have call predecessors, (108), 29 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-02 18:06:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 656 transitions. [2023-12-02 18:06:53,786 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 656 transitions. Word has length 99 [2023-12-02 18:06:53,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:06:53,787 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 656 transitions. [2023-12-02 18:06:53,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 18:06:53,787 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 656 transitions. [2023-12-02 18:06:53,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 18:06:53,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:06:53,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:06:53,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 18:06:53,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 18:06:53,989 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:06:53,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:06:53,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1632317753, now seen corresponding path program 1 times [2023-12-02 18:06:53,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:06:53,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029416133] [2023-12-02 18:06:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:06:53,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:06:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:06:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:06:54,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:06:54,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029416133] [2023-12-02 18:06:54,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029416133] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:06:54,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676939670] [2023-12-02 18:06:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:06:54,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:06:54,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:06:54,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:06:54,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ae647-1b0f-4fe3-868c-3dcd0d84eced/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 18:06:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:06:54,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:06:54,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:06:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:06:54,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:06:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:06:54,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676939670] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:06:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [418520306] [2023-12-02 18:06:54,519 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2023-12-02 18:06:54,519 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:06:54,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:06:54,520 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:06:54,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:08:25,056 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:08:25,234 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 18:08:25,403 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:09:26,067 WARN L293 SmtUtils]: Spent 10.39s on a formula simplification. DAG size of input: 526 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:09:36,628 WARN L293 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 527 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:09:47,889 WARN L293 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 533 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:09:58,929 WARN L293 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 531 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:10:21,702 WARN L293 SmtUtils]: Spent 22.28s on a formula simplification. DAG size of input: 541 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)